﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>最简单的漂移特效</title>
</head>
<body>
<marquee behavior="alternate" height="100%" direction="down">
    <marquee behavior="alternate" direction="right">
        看见这个漂移的效果了吗?
    </marquee>
</marquee>
</body>
</html>